CN103215514B - Be applicable to cold roll and the manufacture method thereof of cold rolled silicon steel - Google Patents
Be applicable to cold roll and the manufacture method thereof of cold rolled silicon steel Download PDFInfo
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- CN103215514B CN103215514B CN201310162657.3A CN201310162657A CN103215514B CN 103215514 B CN103215514 B CN 103215514B CN 201310162657 A CN201310162657 A CN 201310162657A CN 103215514 B CN103215514 B CN 103215514B
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- 229910000976 Electrical steel Inorganic materials 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 239000000126 substance Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000005242 forging Methods 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 5
- 230000000171 quenching effect Effects 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 3
- 208000037656 Respiratory Sounds Diseases 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 4
- 238000007669 thermal treatment Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 5
- 238000005496 tempering Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005097 cold rolling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 201000009240 nasopharyngitis Diseases 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
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Abstract
The invention discloses a kind of cold roll being applicable to cold rolled silicon steel, the chemical composition in its material and weight percentage are: C:0.85% ~ 1.10%; Si:0.2% ~ 0.4%; Mn:0.35% ~ 0.65%; Cr:4.5% ~ 5.5%; Mo:1.2% ~ 2.5%; V:0.4 ~ 0.6%; W:1.2% ~ 1.4%; S :≤0.020; P :≤0.020, surplus is Fe.The invention also discloses the making method of above-mentioned cold roll.The present invention is by Composition Design and reasonably thermal treatment process targetedly, add cold roll thermal shock resistance in use, the comparatively elevated operating temperature that a large amount of deformation heat having adapted to cause due to heavy reduction in silicon steel cold-rolled process cause, significantly reduces the accident that roll occurs crackle, peels off.
Description
Technical field
The invention belongs to field of metallurgy, especially a kind of cold roll and manufacture method thereof being applicable to cold rolled silicon steel.
Background technology
It is little that cold rolled silicon steel has iron loss, the characteristics such as coercive force is little, magnetic permeability and magnetic induction density are high, be the indispensable critical function material of electric power, electronics and war industry, its manufacturing technology and quality product are one of important symbols of a measurement national science and technology developmental level.In recent years the cold rolled silicon steel Yield and quality of China all develops very fast, but cold rolled silicon steel roll develops backwardness relatively, can not adapt to and meet the growth requirement of cold rolled silicon steel.
Cold rolled silicon steel increases due to silicone content, and yield strength and the tensile strength of steel obviously increase, and unit elongation reduces, and hardness increases rapidly, and fragility also synchronously increases.Simultaneously in order to obtain desirable tissue, heavy reduction rolling must be taked in cold-rolled process, the deformation heat of rolling can make steel billet temperature be elevated to about 100 DEG C ~ 300 DEG C, this working temperature has exceeded the final tempering temperature about 130 DEG C ~ 150 DEG C in common cold roll manufacturing processed, in use, common cold roll roll surface is subject to the uneven thermal shocking of sheet material, and roll surface is by uneven tempering, the accident such as easily occur crackle, peel off, cannot meet the service requirements of silicon steel rolling.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of cold roll being applicable to cold rolled silicon steel, it is through Composition Design targetedly, solves final tempering temperature in common cold roll manufacturing processed and causes roll surface easily to occur crackle lower than silicon steel temperature in the operation of rolling, the problem such as to peel off.
Present invention also offers the manufacture method of above-mentioned cold roll.
For solving the problems of the technologies described above, one of technical scheme that cold roll of the present invention is taked is: a kind of cold roll being applicable to cold rolled silicon steel, and its gordian technique is: the chemical composition in its material and weight percentage are respectively: C:0.85% ~ 1.10%; Si:0.2% ~ 0.4%; Mn:0.35% ~ 0.65%; Cr:4.5% ~ 5.5%; Mo:1.2% ~ 2.5%; V:0.4 ~ 0.6%; W:1.2% ~ 1.4%; S :≤0.020; P :≤0.020, surplus is Fe and inevitable impurity.
The step that the present invention manufactures above-mentioned cold roll is as follows:
1) according to above-mentioned chemical composition and content thereof, adopt common process method, manufacture rough forging;
2) forging stock is carried out rough turn and modified;
3) quenching heat treatment, quenching temperature is 980 DEG C ~ 1100 DEG C;
4) deepfreeze, temperature is-40 DEG C ~-80 DEG C, hold-time 2h ~ 6h;
5) temper, temperature for being greater than 200 DEG C, hold-time 40 ~ 150h, durometer level HSD93 ~ 98.
The present invention is by the feature of research silicon steel cold-rolling process, for in its cold-rolled process, draught is comparatively large, and deformation heat is larger, the feature that rolling working temperature is higher, by new Composition Design, increase the content that Mo, W in steel etc. improves temper resistance element, and through rational thermal treatment process, while meeting the high rigidity of HSD93 ~ 98 after making roll finished heat treatment, tempering temperature is greater than 200 DEG C, to increase roll thermal shock resistance in use, meets the service requirements that silicon steel is cold rolling.
The beneficial effect adopting technique scheme to produce is: the present invention is by Composition Design and reasonably thermal treatment process targetedly, add cold roll thermal shock resistance in use, the comparatively elevated operating temperature that a large amount of deformation heat having adapted to cause due to heavy reduction in silicon steel cold-rolled process cause, meet service requirements, significantly reduce the accident that roll occurs crackle, peels off, fully meet the working conditions of cold rolled silicon steel.
Embodiment
Below in conjunction with embodiment, the present invention is further detailed explanation.
Embodiment 1
Chemical composition and the weight percentage of each material of the present embodiment are: C:1.05; Si:0.37; Mn:0.61; Cr:5.39; Mo:2.30; V:0.57; W:1.36; S is content≤0.006; Control content≤0.009 of P, surplus is Fe and inevitable trace impurity.
The manufacturing step of the present embodiment is as follows:
1, cold rolling roller stock is obtained according to above-mentioned chemical composition and content conventional production process; Smelt with electric arc furnace and LF+VD ladle refining furnace, be molded into electrode bar steel ingot; Then electrode bar steel ingot is annealed; Again electrode bar is carried out the ESR ingot that esr obtains high cleanliness; ESR ingot annealed, Forge Heating, is forged into roller stock; Heat treatment after forging is carried out to roller stock, reface processing, detect qualified both can be used as roll base use.
2, roller stock is carried out rough turn and modified.
3, induction quenching, Heating temperature is 1080 DEG C.
4, deepfreeze, its temperature is-70 DEG C, and the time is 6h.
5, temper, its temperature is 320 DEG C.
Adopt Shore hardness meter, the roll surface hardness of the present embodiment cold roll is detected, is HSD96 ~ 98 through its hardness of repeated detection, meets service requirements, and do not occur crackle through production test roll surface, the problem such as to peel off.
Embodiment 2 ~ embodiment 3, its composition and processing condition are as following table (contain embodiment 1, be weight percentage), and it is substantially identical with the manufacture method of embodiment 1, and it detects hardness and sees the following form in the lump.
The present invention is directed to the feature of silicon steel cold-rolling process, by new Composition Design, add the content that Mo, W in steel etc. improves temper resistance element, while making roll meet the high rigidity scope of HSD93 ~ 98 after finished heat treatment in the fabrication process by rational manufacturing process, tempering temperature is greater than 200 DEG C by bringing up to of about 130 in conventional cold roll manufacturing processed DEG C ~ 150 DEG C, to increase roll thermal shock resistance in use, meet service requirements.
Claims (1)
1. be applicable to a cold roll for cold rolled silicon steel, it is characterized in that: the chemical composition in its material and weight percentage are respectively: C:0.85% ~ 1.10%; Si:0.2% ~ 0.4%; Mn:0.35% ~ 0.65%; Cr:4.5% ~ 5.5%; Mo:1.2% ~ 2.5%; V:0.4 ~ 0.6%; W:1.2% ~ 1.4%; S :≤0.020; P :≤0.020, surplus is Fe and inevitable impurity;
Described cold roll manufacture method is carried out according to the following steps:
1) according to above-mentioned chemical composition and content thereof, adopt common process method, manufacture rough forging;
2) forging stock is carried out rough turn and modified;
3) quenching heat treatment, quenching temperature is 980 DEG C ~ 1100 DEG C;
4) deepfreeze, temperature is-40 DEG C ~-80 DEG C, hold-time 2h ~ 6h;
5) temper, temperature is 260 DEG C ~ 320 DEG C, hold-time 40 ~ 150h, durometer level HSD93 ~ 98.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310162657.3A CN103215514B (en) | 2013-05-07 | 2013-05-07 | Be applicable to cold roll and the manufacture method thereof of cold rolled silicon steel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310162657.3A CN103215514B (en) | 2013-05-07 | 2013-05-07 | Be applicable to cold roll and the manufacture method thereof of cold rolled silicon steel |
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| CN103215514A CN103215514A (en) | 2013-07-24 |
| CN103215514B true CN103215514B (en) | 2016-02-03 |
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| CN112921152B (en) * | 2021-02-01 | 2022-05-17 | 襄阳裕丰德科技有限公司 | Novel heat treatment process for full-hardened cold-rolled working roll |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4823451A (en) * | 1985-07-08 | 1989-04-25 | Chavanne Ketin | Forged cold-rolling roll |
| CN101270446A (en) * | 2008-04-25 | 2008-09-24 | 常州宝隆冶金设备制造有限公司 | Roller |
| CN101381843A (en) * | 2008-10-17 | 2009-03-11 | 山西太钢不锈钢股份有限公司 | 5Cr5MoWSiV cold roller and heat treatment method thereof |
| CN101880834A (en) * | 2010-07-27 | 2010-11-10 | 中钢集团邢台机械轧辊有限公司 | Cold roll with high abrasive resistance and high roughness retaining capability and manufacturing method thereof |
| CN101956145A (en) * | 2010-09-26 | 2011-01-26 | 中钢集团邢台机械轧辊有限公司 | Semi high speed steel cold-rolling intermediate roll and manufacturing method thereof |
-
2013
- 2013-05-07 CN CN201310162657.3A patent/CN103215514B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4823451A (en) * | 1985-07-08 | 1989-04-25 | Chavanne Ketin | Forged cold-rolling roll |
| CN101270446A (en) * | 2008-04-25 | 2008-09-24 | 常州宝隆冶金设备制造有限公司 | Roller |
| CN101381843A (en) * | 2008-10-17 | 2009-03-11 | 山西太钢不锈钢股份有限公司 | 5Cr5MoWSiV cold roller and heat treatment method thereof |
| CN101880834A (en) * | 2010-07-27 | 2010-11-10 | 中钢集团邢台机械轧辊有限公司 | Cold roll with high abrasive resistance and high roughness retaining capability and manufacturing method thereof |
| CN101956145A (en) * | 2010-09-26 | 2011-01-26 | 中钢集团邢台机械轧辊有限公司 | Semi high speed steel cold-rolling intermediate roll and manufacturing method thereof |
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| CN103215514A (en) | 2013-07-24 |
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Effective date of registration: 20160510 Address after: 054400, Chengxi Industrial Zone, Nanhe County, Xingtai City, Hebei Province, 4 kilometers south of Xing Road (North Dou Village South) Patentee after: XINGTAI XINGYE MACHINERY EQUIPMENT CO., LTD. Address before: Xingtai City, Hebei Province, 054000 West Road No. 5 on metallurgical TianKuo 3-302 Patentee before: Geng Zhenyu |